// 云函数入口文件
const cloud = require('wx-server-sdk')
cloud.init({
  env: cloud.DYNAMIC_CURRENT_ENV
})
const db = cloud.database();
const _ = db.command;
// 云函数入口函数
exports.main = async (event, context) => {
  let docid = event.docid
  return await db.collection('MUSIC_LOG').doc(docid).update({
    data:{
      playlength:_.inc(60)
    }
  })
}